Unit 6 Test Review

Solve this system of equations by graphing.

y = 1/2x + 2

y = -3/2x + 6

• (2, 3)

• (-2, -3)

• (3, 2)

• (-3, 2)

What is the solution to this system?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

When you graph the exact same line twice,

• you will have no solution.

• you will have one solution.

• you will have infinite solutions.

• you will graph a giraffe.

How many solutions will this system have? 

• No solution

• One Solution

• I Don't Know

• Infinitely Many Solutions

y = −2
4x − 3y = 18 

• (3-2)

• (-2,3)

• (2,-3)

• (3,3)

Solve by elimination:
7x - 5y = -24
-9x + 5y = 18

• (3, 9)

• (-3, -5)

• (3, 11)

• (3, -11)

Is (5,2) a solution to

6x - 4y > 22

• Yes

• No

Is (-3,1) a solution to

2x + 4y > 10

• Yes

• No

Consider the function y<2x+3. Which is true?

• The line would be solid with shading above.

• The line would be dashed with shading above.

• The line would be solid with shading below.

• None of these.

How can I tell if an inequality will have a solid line?

• It has an equal sign.

• The symbol is greater than.

• The symbol has "or equal to."

• You just guess.